Merge pull request #1717 from TheBlueMatt/2022-09-req-features-in-handlers

Move checking of specific require peer feature bits to handlers

diff --cc lightning/src/ln/functional_tests.rs
Simple merge

diff --cc lightning/src/ln/peer_handler.rs
Simple merge

diff --cc lightning/src/onion_message/functional_tests.rs
Simple merge

diff --cc lightning/src/onion_message/messenger.rs
Simple merge